We recommend that you contact the tax authority of your country to advise you accordingly.
We advise you to include your rental income (related to the rental of one or more boats) in your annual income tax return.
Click & Boat provides you with the total amount of your annual income so that you are aware of the sum to declare every year.
You will find this number on your account. Click on "My Bookings" and then on "Download summary".
More about your Click & Boat income here.